Sparky Question

[Steve @ TheHeatingHub]

so could I spur of a ring main and put in an additional consumer board and wire up plugs and lights off of that ? Small load of couse

 

[mountainman]

You can spur off the ring main via a 13amp double pole fused spur then run into the garage.
What you do afterwards regarding a consumer unit, radials etc is up to you.
Just remember that your main circuit on the house emust be protected by a 30ma RCD and your garage supply will be limited to 13amps.

 

[Steve @ TheHeatingHub]

thanks for all your help I'm currently digging up the garden for the duct and amoured to go down, this is worse than working in lofts :/

 

[Nostrum]

Just thinking about this, there is no reason why you couldn't spur off in 6mm and have 32A out into the garage as far as i'm aware.

 

[mountainman]

Just thinking about this, there is no reason why you couldn't spur off in 6mm and have 32A out into the garage as far as i'm aware.

Sorry, A spur off of a ring feeding radials needs to be as I described earlier IMO.

 

[Nostrum]

OCPD is 32A, cable is capable of this easily (could use 4 mm but was taking into account de rating factors of buried SWA cable) can't see a problem myself. The 13A is only there to protect the cable, which we would assume to be 2.5mm due to terminal size issues.

If your taking it into a garage board the radials can be protected accordingly at the board.

I'll pop the question onto the electricians forum and double check as I may not be aware of a specific regulation preventing this.

 

[Nostrum]

spur off ring to garage supply